Viewing archive of tisdag, 13 augusti 2002

Solaktivitetsrapport

Any mentioned solar flare in this report has a scaling factor applied by the Space Weather Prediction Center (SWPC). Because of the SWPC scaling factor, solar flares are reported as 42% smaller than for the science quality data. The scaling factor has been removed from our archived solar flare data to reflect the true physical units.
Rapport för sol- och geofysisk aktivitet 2002 Aug 13 2200 UTC
Skapad av NOAA © SWPC och bearbetad av SpaceWeatherLive.com

USAF/NOAA rapport för sol- och geofysisk aktivitet

SDF Nummer 225 publicerat klockan 2200Z på 13 Aug 2002

IA. Analys av solfläcksgrupper och solaktivitet från 12-2100Z till 13-2100Z

Solar activity increased to moderate levels. Region 69 (S07E50) produced an M1/1f flare at 13/1904 UTC associated with minor discrete radio emission. Region 69 showed a minor increase in penumbral coverage and remained a large, complex spot group with multiple magnetic delta configurations. Region 66 (N14E16) showed a minor increase in spots and area with some polarity mixing evident within its intermediate spots. Minor growth was also observed in Region 63 (N18W14) and Region 72 (S18W48). Region 58 (S07W89) produced a few subflares as it crossed the west limb. Two slow coronal mass ejections (estimated plane of sky velocity about 205 km/sec) occurred during the period. The source for the CMEs appeared to be beyond the southeast limb. New Region 77 (S18E48) was numbered.
IB. Prognos för solaktivitet
Solar activity is expected to be at low to moderate levels. Region 69 is likely to produce isolated M-class flares during the period. There is also a slight chance for a major flare from this region.
IIA. Sammanfattning av geofysisk aktivitet 12-2100Z till 13-2100Z
Geomagnetic field activity ranged from quiet to active levels until 13/0600 UTC due to coronal hole effects. Field activity decreased to quiet to unsettled levels during the rest of the period.
IIB. Prognos för geofysisk aktivitet
Geomagnetic field activity is expected to be at quiet to unsettled levels through the period. The greater than 2 MeV electron flux at geo-synchronous orbit may reach high levels during the first half of the forecast period.
III. Chans för solutbrott från 14 Aug till 16 Aug
M-klass40%40%40%
X-klass05%05%05%
Proton01%01%01%
PCAFgreen
IV. Penticton 10.7 cm Flux
  Observerad       13 Aug 192
  Prognoserat   14 Aug-16 Aug  190/190/195
  90 Day Mean        13 Aug 164
V. Geomagnetiskt A-index
  Observerad Afr/Ap 12 Aug  009/015
  Förväntat     Afr/Ap 13 Aug  013/015
  Prognoserat    Afr/Ap 14 Aug-16 Aug  012/012-010/010-010/010
VI. Chanser för geomagnetisk aktivitet från 14 Aug till 16 Aug
A. Medelhöga breddgrader
Aktivt30%25%25%
Små stormförhållanden05%05%05%
Svåra stormförhållanden01%01%01%
B. Höga breddgrader
Aktivt35%30%30%
Små stormförhållanden10%10%10%
Svåra stormförhållanden01%01%01%

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